(1)The boys aren't playing football. (2)The pupils can't swim. (3)Mary doesn't have any goldfish. (4)He didn't call me yesterday. (5)The farmers weren't very busy. (6)Mr Brown wasn't ill.
(1)The boys aren't playing football. (2)The pupils can't swim. (3)Mary doesn't have any goldfish. (4)He didn't call me yesterday. (5)The farmers weren't very busy. (6)Mr Brown wasn't ill.